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Spectacle Blind · Class 900

Family: Spectacle Blinds
Reference: Spectacle blind · Class 900
Standard: ASME B16.48

Dimensions according to ASME B16.48-2020. All dimensional values are in mm. DN and NPS are nominal designations; NPS retains its inch designation.

RF · Female RTJ · Male RTJ

RF · For raised face flanges

Dimensioned drawing

Dimensioned drawing RF · For raised face flanges
Click the drawing to enlarge.

B: inside diameter · O: outside diameter · A: centre-to-centre distance · t: thickness · W: bridge width.

The clearance hole, where required, shall have the same diameter as the flange bolt hole and shall not interfere with the bolts. Bridge thickness Wt is determined in accordance with Section 4.1 of the standard. The raised face shown is optional; see Section 4.3.1.

Class 900 · RF

Dimensions in mm. DN / NPS nominal sizes in bold.

DNNPSB · Bore ØO · Outside ØA · Centre to centret · ThicknessW · Bridge
151/2″1660806,438
203/4″2167906,441
251″27761006,457
321 1/4″37861109,757
401 1/2″43951259,767
502″5514016512,757
652 1/2″6716219012,767
803″8316519015,767
1004″10820323519,176
1255″13524428022,486
1506″16228632025,486
2008″21235639535,195
25010″26543247041,1105
30012″31549553547,8105
35014″34651856053,8114
40016″39757261560,5124
45018″44863568566,5133
50020″49769675073,2133
60024″59783590088,9152

DN 15 · NPS 1/2″

DN15
NPS1/2″
B · Bore Ø16
O · Outside Ø60
A · Centre to centre80
t · Thickness6,4
W · Bridge38

DN 20 · NPS 3/4″

DN20
NPS3/4″
B · Bore Ø21
O · Outside Ø67
A · Centre to centre90
t · Thickness6,4
W · Bridge41

DN 25 · NPS 1″

DN25
NPS1″
B · Bore Ø27
O · Outside Ø76
A · Centre to centre100
t · Thickness6,4
W · Bridge57

DN 32 · NPS 1 1/4″

DN32
NPS1 1/4″
B · Bore Ø37
O · Outside Ø86
A · Centre to centre110
t · Thickness9,7
W · Bridge57

DN 40 · NPS 1 1/2″

DN40
NPS1 1/2″
B · Bore Ø43
O · Outside Ø95
A · Centre to centre125
t · Thickness9,7
W · Bridge67

DN 50 · NPS 2″

DN50
NPS2″
B · Bore Ø55
O · Outside Ø140
A · Centre to centre165
t · Thickness12,7
W · Bridge57

DN 65 · NPS 2 1/2″

DN65
NPS2 1/2″
B · Bore Ø67
O · Outside Ø162
A · Centre to centre190
t · Thickness12,7
W · Bridge67

DN 80 · NPS 3″

DN80
NPS3″
B · Bore Ø83
O · Outside Ø165
A · Centre to centre190
t · Thickness15,7
W · Bridge67

DN 100 · NPS 4″

DN100
NPS4″
B · Bore Ø108
O · Outside Ø203
A · Centre to centre235
t · Thickness19,1
W · Bridge76

DN 125 · NPS 5″

DN125
NPS5″
B · Bore Ø135
O · Outside Ø244
A · Centre to centre280
t · Thickness22,4
W · Bridge86

DN 150 · NPS 6″

DN150
NPS6″
B · Bore Ø162
O · Outside Ø286
A · Centre to centre320
t · Thickness25,4
W · Bridge86

DN 200 · NPS 8″

DN200
NPS8″
B · Bore Ø212
O · Outside Ø356
A · Centre to centre395
t · Thickness35,1
W · Bridge95

DN 250 · NPS 10″

DN250
NPS10″
B · Bore Ø265
O · Outside Ø432
A · Centre to centre470
t · Thickness41,1
W · Bridge105

DN 300 · NPS 12″

DN300
NPS12″
B · Bore Ø315
O · Outside Ø495
A · Centre to centre535
t · Thickness47,8
W · Bridge105

DN 350 · NPS 14″

DN350
NPS14″
B · Bore Ø346
O · Outside Ø518
A · Centre to centre560
t · Thickness53,8
W · Bridge114

DN 400 · NPS 16″

DN400
NPS16″
B · Bore Ø397
O · Outside Ø572
A · Centre to centre615
t · Thickness60,5
W · Bridge124

DN 450 · NPS 18″

DN450
NPS18″
B · Bore Ø448
O · Outside Ø635
A · Centre to centre685
t · Thickness66,5
W · Bridge133

DN 500 · NPS 20″

DN500
NPS20″
B · Bore Ø497
O · Outside Ø696
A · Centre to centre750
t · Thickness73,2
W · Bridge133

DN 600 · NPS 24″

DN600
NPS24″
B · Bore Ø597
O · Outside Ø835
A · Centre to centre900
t · Thickness88,9
W · Bridge152

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Female RTJ · Ring joint groove

Dimensioned drawing

Dimensioned drawing Female RTJ · Ring joint groove
Click the drawing to enlarge.

B: inside diameter · O: outside diameter · A: centre-to-centre distance · t: thickness · W: bridge width.

The clearance hole, where required, shall have the same diameter as the flange bolt hole and shall not interfere with the bolts. Bridge thickness Wt is determined in accordance with Section 4.1 of the standard. The RTJ groove is dimensioned according to ASME B16.5.

Class 900 · FEMALE RTJ

Dimensions in mm. DN / NPS nominal sizes in bold.

DNNPSB · Bore ØO · Outside ØA · Centre to centret · ThicknessW · Bridge
151/2″21618022,438
203/4″27679022,445
251″347110022,451
321 1/4″428111025,451
401 1/2″489212525,464
502″6112416531,851
652 1/2″7313719035,167
803″8915519035,167
1004″11418123541,173
1255″14121628044,573
1506″16824131547,873
2008″21930839557,280
25010″27336247063,5121
30012″32441953573,2121
35014″35646756082,6121
40016″40652461591,9127
45018″457594685101,6133
50020″508648750111,3127
60024″610772900133,4140

DN 15 · NPS 1/2″

DN15
NPS1/2″
B · Bore Ø21
O · Outside Ø61
A · Centre to centre80
t · Thickness22,4
W · Bridge38

DN 20 · NPS 3/4″

DN20
NPS3/4″
B · Bore Ø27
O · Outside Ø67
A · Centre to centre90
t · Thickness22,4
W · Bridge45

DN 25 · NPS 1″

DN25
NPS1″
B · Bore Ø34
O · Outside Ø71
A · Centre to centre100
t · Thickness22,4
W · Bridge51

DN 32 · NPS 1 1/4″

DN32
NPS1 1/4″
B · Bore Ø42
O · Outside Ø81
A · Centre to centre110
t · Thickness25,4
W · Bridge51

DN 40 · NPS 1 1/2″

DN40
NPS1 1/2″
B · Bore Ø48
O · Outside Ø92
A · Centre to centre125
t · Thickness25,4
W · Bridge64

DN 50 · NPS 2″

DN50
NPS2″
B · Bore Ø61
O · Outside Ø124
A · Centre to centre165
t · Thickness31,8
W · Bridge51

DN 65 · NPS 2 1/2″

DN65
NPS2 1/2″
B · Bore Ø73
O · Outside Ø137
A · Centre to centre190
t · Thickness35,1
W · Bridge67

DN 80 · NPS 3″

DN80
NPS3″
B · Bore Ø89
O · Outside Ø155
A · Centre to centre190
t · Thickness35,1
W · Bridge67

DN 100 · NPS 4″

DN100
NPS4″
B · Bore Ø114
O · Outside Ø181
A · Centre to centre235
t · Thickness41,1
W · Bridge73

DN 125 · NPS 5″

DN125
NPS5″
B · Bore Ø141
O · Outside Ø216
A · Centre to centre280
t · Thickness44,5
W · Bridge73

DN 150 · NPS 6″

DN150
NPS6″
B · Bore Ø168
O · Outside Ø241
A · Centre to centre315
t · Thickness47,8
W · Bridge73

DN 200 · NPS 8″

DN200
NPS8″
B · Bore Ø219
O · Outside Ø308
A · Centre to centre395
t · Thickness57,2
W · Bridge80

DN 250 · NPS 10″

DN250
NPS10″
B · Bore Ø273
O · Outside Ø362
A · Centre to centre470
t · Thickness63,5
W · Bridge121

DN 300 · NPS 12″

DN300
NPS12″
B · Bore Ø324
O · Outside Ø419
A · Centre to centre535
t · Thickness73,2
W · Bridge121

DN 350 · NPS 14″

DN350
NPS14″
B · Bore Ø356
O · Outside Ø467
A · Centre to centre560
t · Thickness82,6
W · Bridge121

DN 400 · NPS 16″

DN400
NPS16″
B · Bore Ø406
O · Outside Ø524
A · Centre to centre615
t · Thickness91,9
W · Bridge127

DN 450 · NPS 18″

DN450
NPS18″
B · Bore Ø457
O · Outside Ø594
A · Centre to centre685
t · Thickness101,6
W · Bridge133

DN 500 · NPS 20″

DN500
NPS20″
B · Bore Ø508
O · Outside Ø648
A · Centre to centre750
t · Thickness111,3
W · Bridge127

DN 600 · NPS 24″

DN600
NPS24″
B · Bore Ø610
O · Outside Ø772
A · Centre to centre900
t · Thickness133,4
W · Bridge140

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Male RTJ · Integral ring

Dimensioned drawing

Dimensioned drawing Male RTJ · Integral ring
Click the drawing to enlarge.

B: inside diameter · A: centre-to-centre distance · t: thickness · W: bridge width.

The clearance hole, where required, shall have the same diameter as the flange bolt hole and shall not interfere with the bolts. Bridge thickness Wt is determined in accordance with Section 4.1 of the standard. Oval or octagonal rings are permitted. Their dimensions correspond to ASME B16.20, with Th = T + t; T is the ring height.

Class 900 · MALE RTJ

Dimensions in mm. DN / NPS nominal sizes in bold.

DNNPSB · Bore ØA · Centre to centret · ThicknessW · Bridge
151/2″21809,738
203/4″27909,745
251″341009,751
321 1/4″4211012,754
401 1/2″4812512,754
502″6116515,751
652 1/2″7319019,154
803″8919019,167
1004″11423525,473
1255″14128028,473
1506″16831531,873
2008″21939541,179
25010″27347047,8121
30012″32453557,2121
35014″35656060,5121
40016″40661569,9127
45018″45768576,2133
50020″50875085,9127
60024″61090098,6152

DN 15 · NPS 1/2″

DN15
NPS1/2″
B · Bore Ø21
A · Centre to centre80
t · Thickness9,7
W · Bridge38

DN 20 · NPS 3/4″

DN20
NPS3/4″
B · Bore Ø27
A · Centre to centre90
t · Thickness9,7
W · Bridge45

DN 25 · NPS 1″

DN25
NPS1″
B · Bore Ø34
A · Centre to centre100
t · Thickness9,7
W · Bridge51

DN 32 · NPS 1 1/4″

DN32
NPS1 1/4″
B · Bore Ø42
A · Centre to centre110
t · Thickness12,7
W · Bridge54

DN 40 · NPS 1 1/2″

DN40
NPS1 1/2″
B · Bore Ø48
A · Centre to centre125
t · Thickness12,7
W · Bridge54

DN 50 · NPS 2″

DN50
NPS2″
B · Bore Ø61
A · Centre to centre165
t · Thickness15,7
W · Bridge51

DN 65 · NPS 2 1/2″

DN65
NPS2 1/2″
B · Bore Ø73
A · Centre to centre190
t · Thickness19,1
W · Bridge54

DN 80 · NPS 3″

DN80
NPS3″
B · Bore Ø89
A · Centre to centre190
t · Thickness19,1
W · Bridge67

DN 100 · NPS 4″

DN100
NPS4″
B · Bore Ø114
A · Centre to centre235
t · Thickness25,4
W · Bridge73

DN 125 · NPS 5″

DN125
NPS5″
B · Bore Ø141
A · Centre to centre280
t · Thickness28,4
W · Bridge73

DN 150 · NPS 6″

DN150
NPS6″
B · Bore Ø168
A · Centre to centre315
t · Thickness31,8
W · Bridge73

DN 200 · NPS 8″

DN200
NPS8″
B · Bore Ø219
A · Centre to centre395
t · Thickness41,1
W · Bridge79

DN 250 · NPS 10″

DN250
NPS10″
B · Bore Ø273
A · Centre to centre470
t · Thickness47,8
W · Bridge121

DN 300 · NPS 12″

DN300
NPS12″
B · Bore Ø324
A · Centre to centre535
t · Thickness57,2
W · Bridge121

DN 350 · NPS 14″

DN350
NPS14″
B · Bore Ø356
A · Centre to centre560
t · Thickness60,5
W · Bridge121

DN 400 · NPS 16″

DN400
NPS16″
B · Bore Ø406
A · Centre to centre615
t · Thickness69,9
W · Bridge127

DN 450 · NPS 18″

DN450
NPS18″
B · Bore Ø457
A · Centre to centre685
t · Thickness76,2
W · Bridge133

DN 500 · NPS 20″

DN500
NPS20″
B · Bore Ø508
A · Centre to centre750
t · Thickness85,9
W · Bridge127

DN 600 · NPS 24″

DN600
NPS24″
B · Bore Ø610
A · Centre to centre900
t · Thickness98,6
W · Bridge152

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TOBER SL

C/ Brincadero, nº 25
El Raso Industrial Estate · 28750
San Agustín de Guadalix, Madrid
Burgos motorway, exit 36

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+34 918 489 798
Fax: +34 918 414 882
info@bridastober.com

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